Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 14.04
• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to cause a denial of service. CVE-2018-1000880 affected only Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-1000877, CVE-2018-1000878, CVE-2018-1000880)

It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2017-14502)

CVEs contained in this USN include: CVE-2017-14502, CVE-2018-1000877, CVE-2018-1000878, CVE-2018-1000880

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Cloud Foundry BOSH trusty-stemcells are vulnerable, including:
  • 3586.x versions prior to 3586.70
  • 3541.x versions prior to 3541.74
  • 3468.x versions prior to 3468.94
  • 3445.x versions prior to 3445.90
  • All other stemcells not listed.
• Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
  • 170.x versions prior to 170.23
  • 97.x versions prior to 97.51
  • All other stemcells not listed.
• All versions of Cloud Foundry cflinuxfs2 prior to 1.259.0
• All versions of Cloud Foundry cflinuxfs3 prior to 0.50.0

Mitigation

Users of affected products are strongly encouraged to follow one of the mitigations below:

• The Cloud Foundry project recommends upgrading the following BOSH trusty-stemcells:
  • Upgrade 3586.x versions to 3586.70
  • Upgrade 3541.x versions to 3541.74
  • Upgrade 3468.x versions to 3468.94
  • Upgrade 3445.x versions to 3445.90
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• The Cloud Foundry project recommends upgrading the following BOSH xenial-stemcells:
  • Upgrade 170.x versions to 170.23
  • Upgrade 97.x versions to 97.51
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.259.0 or later.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs3 version 0.50.0 or later.

References

• USN-3859-1
• CVE-2017-14502
• CVE-2018-1000877
• CVE-2018-1000878
• CVE-2018-1000880